Luminous indicating device and means for attaching same.



S. A. E. NORRING 6: V. C. THORNE. LUMINOUS INDICATING DEVICE AND MEANSFOR ATTACHING SAME.

APPLICATION man MAY 1. I917.

1,269,636. Patented June 18, 1918.

M ATTORNEY BIGURD A. E. NOBBING, OF BROOKLYN,

ASSIGNOBS TO SCHLOSINGEB RADIUM AND VICTOR O. THORNE, OF NEW YORK, N.Y.,

00., A CORPORATION OF NEW YORK.

LUMINOUS INDIOATING DEVICE AND MEANS FOR ATTAOHINQ SAME.

Specification of Letters Patent.

Patented June 13,1913.

Application flied Kay 1, 1917. Serial No. 165,780.

To all whom it may concern:

Be it known that we, SIGURD A. E. Noa- RING and Vwron O. Tnonnn, bothcitizens of the United States, and residing respectively, in the boroughof Brooklsvn and borough of Manhattan, city and tate of New York, haveinvented certain new and useful Improvements in Luminous IndicatingDevices and Means for Attaching Same, of which the following is a clearand exact description.

The object of this invention is to provide an eflicient, simple andattractive luminous indicating device and means for securing it toobjects to be indicated and particularly to chains of lighting fixtures.The device may also be used without the luminous niaterial therein andthe securin means may be used apart from the indicatin devices as forinstance two of the securing evices may be united and used to connectsections of pull chains.

In the drawing Figure I shows a crosssection of the indicating deviceand the means for attaching it to an article to be indicated. Fig. II isa plan view of the attaching means, with a, part of the outer wallremoved, to show the interior thereof. Fig. III is a plan view of theretaining member for securing the terminal bead of a pull chain to theattaching means.

This invention consists of a casin on tube 1- of comparativel thickglass wit an open top 2 and a close bottom 3 containing therein aluminous material 4 such as a mixture of radium and zinc sulfid. Theluminous material is preferably first secured on a carryin material 5 ofany desired kind: Celluloid is preferred because the rays of theluminous material will ass therethrough which material need erefore be aplied only to one side of the celluloid.

he celluloid is preferabl'" coiled or made spiral as shown and placewithin the tube. This coil or special arrangement of the carryingmaterial re uires ,but a minimum of lumlnous materia and at the sametime makes the luminous rays visible from all angles and positions withrespect to the indicating device. a

The tube at the to cap having thereon a 00 6 for-attachment to means forsecuring it to pull chains .or the like.

Such means for attaching and securing is provided with e the indicatingdevice to pull chains or the like comprise a socket 7 having a well 8;shoulder 9; annular channel 10; flange 11, and an opening 12 in the topof the socket. A resilient U-shaped retaining member 13 is placed in thechannel 10 and on the shoul-- der 9. The retaining member fits looselyin the channel so that it may freely expand and contract therein in theprocess of securing the terminal bead 1-1, of a pull chain, to it. Theretainin member 13 is slightly longer than the wi th of the opening 12and normally smaller across than the widest part of the bead, or articlewhich is to be secured in the socket. The opening 12 should be largeenough to permit the head to pass through it.

When it is desirous to attach the. socket to a pull chain, or the like,the terminal bead 14 is assed through the opening 12 and pressedownwardly against the top of the retaining member 13. The member 13 isthereby pressed against the shoulder 9 and caused to spread or extend(as shown in broken lines in Fig. II) permitting the head to pass intothe well 8. The member 13, after the bead has passed therethroughsprings back into practically its norma ts)ha e and closes over anarrower part of the When the pressure on the bead is released, and theweight of the indicating device, allowed to hang on the head, theretainin member is pressed against the flange 1% thereby retaining theterminal head in the socket and uniting the socket to the chain.Pressure on the socketas in operating a switch,-]'ams the retainingmember against the flan 11 (and at times parts thereof against t e sidewalls of the socket) thereby securin the member, under ordinaryCOIldltions 0 use, against expansion. The chain may be removed from thesocket by an unusual pull thereon whichwill cause the member 13 toexpand and permit the head to escape therefrom.

The socket and indicating device are united by the ring 15 passingthrough loops 6 and 16. The indicating device alone may be secured to achain link or hook by the loop 6 or ring 15.

What We claim is:

1. The combination, in a socket for attachment to pull chains or thelike, of a sus pending member, an independent resilient member combinedtherewith, a suspendi chain or the like and a projection carri by saidchain or the like andarranged to be forced beyond said resilient memberwhereb said suspending member and chain or the ike are coupled together.

2. In a luminous indicating device or' the like, the combination of achain and socket member said chain having a beaded end, the soc ethaving an opening thereinrma flan on the socket, a shoulder in the soct,

sai flange and shoulder formin a channel,

a resilient retaining member in t e channel, a bead within the retainingmember whereby the chain is con ledto the socket.

3. socket or pull chains or the like, comprising a hollow body having anopening therein for admission for an object, an

expansible member in the body, a seat for" the expansible member, meansfor retaining 20 the member within the bod and means for limitin theexpansion of t e member.

i. A uminous indicating device comprisin a casing, a luminous materialcarried by the casing and spirally arran d therein.

5. A luminous indicating evice comprising a translucent casin a luminousmaterial in the casing, carried y a material spirally arra ed within thecasing, the luminous materlal being secured on the outside of thecarrying material.

In witness whereof we have hereunto set if our respective hands this30th day of April,

Correction In Letters Patent No.1,269.6 36.

I It. is hereby certified that. the name of the assignee' in LettersPatent N 0. 1,269,636,

granted June 18, 1918, upon the'applicntion of Sigurd A. E. Norring, ofBrooklyn, and Viotor 'Thorno, of New York, N. Y.', or an improvement. inLuminous Indicating Deviceo and Means for Attaching Same, waserroneously written and nrinted as' Schlesinger Radium Co.," whorodssaid name should be written and printed as Schlesinger Radium 00., asshown by the records of assignments in this ofiice; and that the saidLettora Patent ahonld be read with this correction therein that the aamamay conform to the rooord of'tho one in the Potent Oflico.

Signed and sealed this 30th day of July, A. D., 1918.

R. F. WHITEHEAD,

Acting Umnmiuiomr of PM.

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